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Online since: July 2013
Authors: Yu Bo, Xiao Liu
The test materials were melted by a 25kg vacuum medium frequency induction furnace.
Bacci: Corrosion Science, vol. 48 (2006), p. 1513
Abd El Rehim: Materials Chemistry and Physics, vol. 63, (2000), p. 67
Badway: Journal of Applied Electrochemistry, vol. 34 (2004), p. 1153
Kido: Corrosion Science, vol. 51 (2009), p. 1604
Online since: March 2013
Authors: Liang Min Cai, Jun Le, Lin Jun Wang, Ke Tang, Jian Huang, Bing Ren, Bei Ling Yao, Yue Zhu, Li Ya Shen, Jie Zhou
Effect of Ar Pressure on Properties of Polycrystalline CdZnTe Films Beiling Yao a, Jian Huang b, Liangmin Cai c, Ke Tang d, Bing Ren e, Jie Zhou f, Jun Le g, Liya Shen h, Yue Zhu i, Linjun Wang* j School of Materials Science and Engineering, Shanghai University, No. 149 Yanchang Road, Shanghai 200072, China ayaobeiling@ shu.edu.cn, bjianhuang@shu.edu.cn, clm_cai@yahoo.cn, dtangke26@yahoo.com.cn, erb1989@shu.edu.cn, ffoxzhou@shu.edu.cn, glejun0926@sina.com, hliya@shu.edu.cn, izhuyue545@yahoo.cn, jljwang@shu.edu.cn Key words: CdZnTe film; Ar pressure; close-spaced sublimation Abstract.
CdZnTe is a promising material for X-ray and gamma ray detectors because of its low leakage currents and high quantum efficiency in detectors at room temperature [3].
The sublimation source material was polycrystalline CdZnTe (Zn=5%) which were synthesized from high purity Cd, Zn and Te.
Acknowledgements This work was supported by National Natural Science Foundation of China (No.11074162, No.61176072), Science and Technology Commission of Shanghai (No. 11530500200), Innovation Program of Shanghai Municipal Education Commission (No. 12ZZ096) and Shanghai Education Committee for Excellent Youth Scholars.
Rekha, Electrochemical growth and studies of CdZnTe thin films, Indian Journal of Pure & Applied Physics. 48(2010) 133-135
Online since: May 2011
Authors: Hong Yu Zheng, Huai Yan Jiang, Zhi Tao Lu
FRP is now widely used as the material of structures retrofit, strengthening.
Comparing with other types of FRP, CFRP is the most suitable non-metal material for cables in the long-span suspension bridge of the future.
Considering material type of main cable brings a little change to cable shape (according to the author’s privious study), and of saddle may not change remarkably when steel cables were replaced with CFRP one.
Acknowledgements The authors are very grateful for the financial support from the National Natural Science Foundation of China (50178018) and the Foundation for Natural Science of Guangxi University (X081099).
Journal of Highway and Transportation Research and Development, Vol. 16, No. 3 (1999), p. 35
Online since: January 2012
Authors: Yang Wang, Chao Yi Peng
Keennon et al., Multifunctional Structure-Battery Materials for Enhanced Performance in Small Unmanned Air Vehicles, ASME International Mechanical Engineering Congress and Exhibition, New York, United States (2003) [4] Rohatgi, J.
Aglietti, The Thermal Environment Encountered in Space by a Multifunctional Solar Array, Aerospace Science and Technology. 14 (2010) 213-219
Wang, Thermal Analysis of Lithium-Ion Batteries, Journal of Power Sources. 140 (2005) 111-124
Cosculluela, A Multiscale Model for the Effective Thermal Conductivity Tensor of a Stratified Composite Material, International Journal of Thermophysics. 26 (2005) 191-202
Newman, A General Energy Balance for Battery System, Journal of Electrochemical Society. 132 (1985) 5-12.
Online since: January 2012
Authors: Wei Ping Cao, Qi Chao Shi
Both the embankment fill and the foundation soils were considered as Mohr-Coulomb materials.
The material parameters are listed in Table 1.
The physical and mechanical parameters of the materials Materials [kN/m3] [kN/m3] [m/d] [Mpa] [kPa] [°] [°] Concrete- asphalt 23 23 - 1000 0.17 - - - Gravel-clay mixture 20 24 1.0 30 0.25 5 30 0 Crushed stone 20 23 1.0 40 0.25 0 32 5 Crust 16 18 0.00015 6 0.25 15 20 0 Soft clay 14 17 0.00065 4 0.35 10 15 0 Results and Analyses Fig. 2a shows the settlements at the base of the existing embankment rested on a 20 m thick foundation soils after the construction.
Huang: Journal of Geotechnical Engineering, Vol. 119 (1993) No.1, p.127
Day: Journal of Geotechnical Engineering, Vol.120 (1994) No.11, p.1980
Online since: August 2013
Authors: Jian Song Yuan, Dan Ying Gao, Lin Yang
Experiment overview Materials used in concrete mixes included water, cement, aggregates and steel fiber.
The properties of other materials used are given in Table 1-Table 3.
Gravel gradation results Sieve size /mm 25 20 16 10 5 2.5 Cumulative sieve residue% 0 3.7 23.2 48.4 81.2 98.5 The forced-power mixer is applied to ensure the materials were uniformly distributed in the mixture.
“Effect of Steel Fiber Feinforced Concrete Strength from Steel Fiber Mixing Volume Content,” Building science, Vol. 24, no. 3. 2008
“Effect of Types and Volume Percentage of Steel Fiber on Properties of Concrete,” Journal of building material, Vol. 6, no. 4. 2003
Online since: June 2012
Authors: Hong Lei Li, Guo Ping Cen, Qiang Kang Gu
Finite element model.ANSYS finite element model mainly includes definition unit types,define material properties,creating finite element model and meshing,etc.For thermodynamics model,often choosed unit types are PLANE55(four nodes quadrilateral units) and LINK 32(2-d node heat conduction unit).By literature review and material[12] and the experiment data,the thermal physical parameters of material are defined as is shown in table 1.Pavement structure layer in turn is top-down:10cm asphalt concrete,5cm insulating layer,35cm cement concrete and 30cm two ash gravel,100cm permafrost is under pavement.The electrical conductor spaces 8cm,and deep 5cm.
Tab.1 Thermal parameter of material parameters material λ/[W·(m∙˚C)-1] c/[J·(kg∙˚C)-1] ρ/(kg·m-3) ice 2.2 2050 917 old snow 0.46 2090 400 asphalt concrete 1.03 900 2100 cement concrete 0.87 840 2300 two ash gravel 0.95 820 1800 permafrost 1.41 1840 1850 Initial conditions.Temperature field of airport pavement in a certain time have close relationship with its initial temperature field.As the approximate calculation,hypothesis that soil freezing temperature is 0˚C is made,and latent heat of phase transition process in soil is not considered.Suppose that from the bottom of permafrost to airport pavement surface,because each material coefficient of thermal conductivity is different,the airport pavement initial temperature is piecewise linear change,namely from 0˚C changes to the temperature outside[13].Using ANSYS steady heating transfer analysis,surface temperature field under certain temperature can be gotten,this results of calculation is initial temperature of the finite element calculation
Reference: [1]ZHANG HONG-WEI,HAN SEN.Summarize technology of deicing in asphalt pavement[J].Science and Technology for Traffic in Hei long jiang.2008(3):8-9 [2]MIU XIAO-PING,ZI DONG-YI.Study carbon fiber reinelectrically conductive concrete on Airport Pavement[J].Concrete and Cement Products,2008(4):41-45 [3]LUO HONG,LUO LI-BIN.Affecting and strategies for environment of solvent snow-melting[J].
Environmental monitor in China,2004,20(1):55-57 [4] Mehta P K and Burrows R W.Building Dural Structures in the 21st Centry[J].Concrete International, 2001,(3):57−63 [5]Sherif Yehia,Christopher Y Tuan.Conductive Concrete Overlay for Bridge Deck Deicing [J].ACI Materials Journal,1999,96(3): 382−390 [6]ZHANG SHU-YING.Affecting and strategies for environment of solvent snow-melting [J].Journal of Chen-De Oil Higher Technological Academy.2006,9(3):46−48 [7]LI YAN-FENG,WU HAI-QIN.Experimental Study on Electrical Road Heating System for Snow Melting[J].Journal of Beijing Technology University.2006(3):217−222 [8]WU HAI-QIN.
Online since: September 2014
Authors: Lei Sun, Yang Liu, Wei Wang
Properties of unbonded flexible pipe under axial force Wei Wang1, a, Lei Sun2, b, Yang Liu3, c 1College of Shipbuilding Engineering, Harbin Engineering University, 150001, China 2IT Center, Materials Group, Daqing Oilfield Limited Company, 163712, China 3Turbine Technology Research Center, Research Institute, Harbin Turbine Company Limited, 150046, China aemail: mimal@126.com, bemail: sunl007@cnpc.com.cn, cemail: leo_hit@163.com Keywords: Flexible Pipe; Unbonded; Axial Force; Contact; Friction Abstract.
Carcass layer is an orthotropic layer and not in regular shape, as a result, the equivalent modulus is not the material modulus.
Journal of Offshore Mechanics and Arctic Engineering, 1987, 109: 263-269 [3] P.
Journal of Strain Analysis, 2001, 36(3): 265-275 [6] J.
Journal of Offshore Mechanics and Arctic Engineering, 2004, 126: 141-146 [14] Wei Wang, Geng Chen.
Online since: April 2013
Authors: Nurizan Omar, Zuraida Ahmad
Starch-G-PAN Hydrogel Nurizan Omar1,a and Zuraida Ahmad 2,b 1, 2 Department of Manufacturing and Materials Engineering, Kulliyyah of Engineering, International Islamic University Malaysia, 50728 Gombak, Kuala Lumpur, Malaysia.
Materials and Methods Materials.
Journal of Applied Polymer science, 75 (6) (2000) 808-814 [4] L.P.
Superabsorbent polymer materials: A review.
European Polymer Journal, 46 (2010) 92–100 [9] W.
Online since: June 2016
Authors: Satya Prakash, Buta Singh Sidhu, Jasmaninder Singh Grewal
Nanostructured materials indeed behave differently than their microscopic counterparts because their characteristic sizes are smaller than the characteristic length scales of physical phenomenon occurring in bulk materials [10].
The porosity measurement was made with the image analyzer having software of Dewinter Materials Plus 1.01 based on ASTM B276.
Marple, Published by ASM International, Materials Park, Ohio, USA, (2003), pp. 455-458
Prakash, Mechanical and microstructural properties of HVOF sprayed WC-CO and Cr3C2-NiCr coatings on the boiler tube steels using LPG as the fuel gas, Journal of Materials Processing Technology, Vol. 171, (2006), pp. 77-82
Marple, Published by ASM International, Materials Park, Ohio, USA, (2003), pp. 291-299 [7] Luo Hong, Goberman Daniel, Shaw Leon and Gell Maurice, Indentation fracture behaviour of plasma sprayed nanostructured Al2O3-13wt% T1O2 coatings, Materials Science & Engineering A, Vol. (346), (2003), pp. 237-245